.page-about {
  --about-line: rgba(244, 241, 234, .16);
  --about-gap: clamp(18px, 2.6vw, 28px);
  background: var(--ink);
  color: var(--paper);
}

.page-about .about-crumb-wrap {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--stone);
}

.page-about .breadcrumb a {
  color: var(--stone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: rgba(0, 229, 255, .5);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px) 0 clamp(46px, 6vw, 88px);
  border-bottom: 2px solid var(--about-line);
}

.page-about .about-hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .55;
}

.page-about .about-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(0, 229, 255, .20), transparent 62%),
    linear-gradient(180deg, rgba(10, 26, 47, .45) 0%, rgba(10, 26, 47, .86) 58%, var(--ink) 100%);
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-about .about-hero h1 {
  display: flex;
  flex-direction: column;
  margin: 12px 0 0;
  font-size: clamp(46px, 11vw, 100px);
  line-height: .94;
  letter-spacing: -.045em;
  font-weight: 900;
  color: var(--paper);
}

.page-about .about-hero h1 .about-accent {
  color: var(--cyan);
  text-shadow: 5px 5px 0 rgba(255, 107, 44, .35);
}

.page-about .about-hero-sub {
  margin: 16px 0 0;
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--mint);
}

.page-about .about-hero-lede {
  margin: 18px 0 0;
  max-width: 48ch;
  color: rgba(244, 241, 234, .84);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-status {
  display: grid;
  gap: 12px;
  padding: 18px 20px;
  border: 2px solid var(--hair-strong);
  background: rgba(16, 42, 67, .88);
  box-shadow: var(--shadow-block);
}

.page-about .about-status-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 13px;
  color: var(--paper);
}

.page-about .about-status-top .status-value {
  margin-left: auto;
  font-size: 22px;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

.page-about .about-status-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(244, 241, 234, .72);
}

.page-about .about-status-link {
  justify-self: start;
  font-size: 13px;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 220, 151, .45);
  padding-bottom: 2px;
}

.page-about .about-status-link:hover,
.page-about .about-status-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 数据带 ---------- */
.page-about .about-figures {
  background: var(--ink-3);
  border-bottom: 2px solid var(--about-line);
}

.page-about .about-figures-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--about-line);
}

.page-about .about-figures-grid li {
  padding: clamp(20px, 3vw, 32px) clamp(14px, 2.4vw, 28px);
  background: var(--ink-3);
}

.page-about .about-fig-num {
  display: block;
  font-size: clamp(28px, 6vw, 42px);
  line-height: 1;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

.page-about .about-fig-num em {
  font-style: normal;
  font-size: .5em;
  margin-left: 3px;
  color: var(--cyan);
}

.page-about .about-fig-label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--stone);
  letter-spacing: .04em;
}

/* ---------- 通用章节 ---------- */
.page-about .about-sec {
  padding: clamp(52px, 8vw, 104px) 0;
  border-bottom: 2px solid var(--about-line);
}

.page-about .about-sec-head {
  max-width: 800px;
  margin-bottom: clamp(30px, 5vw, 56px);
}

.page-about .about-sec-mark {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--moss);
}

.page-about .about-sec-lede {
  margin: 16px 0 0;
  color: rgba(244, 241, 234, .76);
  line-height: 1.8;
}

/* ---------- 时间线 ---------- */
.page-about .about-tl {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  margin: 0;
  padding: 0 0 0 38px;
  list-style: none;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--moss) 0%, var(--clay) 48%, var(--cyan) 100%);
  opacity: .85;
}

.page-about .about-tl-item {
  position: relative;
}

.page-about .about-tl-item::before {
  content: "";
  position: absolute;
  left: -37px;
  top: 4px;
  width: 18px;
  height: 18px;
  border: 2px solid var(--paper);
  background: var(--ink);
  transform: rotate(45deg);
  box-shadow: 3px 3px 0 rgba(0, 0, 0, .45);
  transition: background .25s var(--ease), border-color .25s var(--ease);
}

.page-about .about-tl-item:hover::before {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .about-tl-phase {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-about .about-tl-item h3 {
  margin: 0 0 10px;
}

.page-about .about-tl-item p {
  margin: 0;
  color: rgba(244, 241, 234, .76);
  line-height: 1.8;
}

.page-about .about-tl-meta {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--moss);
}

/* ---------- 三层流程 ---------- */
.page-about .about-flow-fig {
  margin: 0 0 clamp(24px, 4vw, 40px);
  border: 2px solid var(--hair-strong);
  box-shadow: var(--shadow-block);
  overflow: hidden;
}

.page-about .about-flow-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-about .about-flow-fig figcaption {
  padding: 11px 14px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--stone);
  background: var(--ink-3);
  border-top: 1px solid var(--hair);
}

.page-about .about-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-flow-step {
  position: relative;
  padding: 22px 20px 24px;
  border: 2px solid var(--hair-strong);
  background: var(--ink-2);
  box-shadow: var(--shadow-block);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.page-about .about-flow-step:hover,
.page-about .about-flow-step:focus-within,
.page-about .about-flow-step:focus {
  transform: translate(-2px, -2px);
  border-color: var(--cyan);
  outline: none;
}

.page-about .about-flow-idx {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 9px;
  font-size: 12px;
  color: var(--cyan);
  border: 1px solid rgba(0, 229, 255, .45);
}

.page-about .about-flow-step h3 {
  margin: 0 0 10px;
}

.page-about .about-flow-sum {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 241, 234, .82);
}

.page-about .about-flow-note {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--stone);
  transition: max-height .4s var(--ease), opacity .3s var(--ease), margin-top .3s var(--ease);
}

@media (hover: none), (pointer: coarse) {
  .page-about .about-flow-note {
    max-height: none;
    opacity: 1;
    margin-top: 12px;
  }
}

/* ---------- 团队 ---------- */
.page-about .about-team-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .about-team-copy h2 {
  margin: 8px 0 18px;
}

.page-about .about-team-copy p {
  margin: 0 0 14px;
  color: rgba(244, 241, 234, .78);
  line-height: 1.85;
}

.page-about .about-team-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-team-stats li {
  padding: 18px 16px;
  border: 2px solid var(--hair-strong);
  background: var(--ink-3);
}

.page-about .about-team-num {
  display: block;
  font-size: clamp(26px, 5vw, 36px);
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-team-label {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--stone);
}

/* ---------- 合作与覆盖 ---------- */
.page-about .about-partners {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 7vw, 96px) 0;
  border-bottom: 2px solid var(--about-line);
}

.page-about .about-partners-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-partners-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .4;
}

.page-about .about-partners-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(10, 26, 47, .95) 22%, rgba(10, 26, 47, .55) 100%),
    radial-gradient(80% 100% at 88% 100%, rgba(184, 107, 75, .35), transparent 60%);
}

.page-about .about-partners-inner {
  position: relative;
  z-index: 1;
}

.page-about .about-partners-inner h2 {
  margin: 8px 0 18px;
  max-width: 22ch;
}

.page-about .about-partners-lede {
  max-width: 62ch;
  margin: 0 0 clamp(24px, 4vw, 36px);
  color: rgba(244, 241, 234, .82);
  line-height: 1.85;
}

.page-about .about-partners-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-partners-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 16px;
  font-size: 14.5px;
  color: rgba(244, 241, 234, .9);
  background: rgba(6, 16, 25, .55);
  border-left: 3px solid var(--cyan);
}

.page-about .about-partners-list .mono {
  min-width: 62px;
  font-size: 18px;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

/* ---------- 荣誉 ---------- */
.page-about .about-honor-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-honor-card {
  padding: 22px 20px 24px;
  border: 2px solid var(--hair-strong);
  background: var(--ink-2);
  box-shadow: var(--shadow-block);
}

.page-about .about-honor-card h3 {
  margin: 14px 0 10px;
}

.page-about .about-honor-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(244, 241, 234, .76);
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  padding: clamp(48px, 7vw, 92px) 0 clamp(56px, 8vw, 104px);
}

.page-about .about-next h2 {
  margin: 0 0 clamp(22px, 3.5vw, 34px);
}

.page-about .about-next-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--about-line);
  border: 2px solid var(--about-line);
}

.page-about .about-next-list a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 22px;
  gap: 4px 14px;
  padding: 20px 18px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  transition: background .25s var(--ease);
}

.page-about .about-next-list a:hover,
.page-about .about-next-list a:focus-visible {
  background: var(--ink-2);
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-about .about-next-t {
  grid-column: 1;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .01em;
}

.page-about .about-next-d {
  grid-column: 1;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--stone);
}

.page-about .about-next-ar {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  font-size: 20px;
  color: var(--cyan);
  transition: transform .25s var(--ease);
}

.page-about .about-next-list a:hover .about-next-ar,
.page-about .about-next-list a:focus-visible .about-next-ar {
  transform: translateX(4px);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 760px) {
  .page-about .about-figures-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-honor-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-next-list a {
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr) 22px;
    align-items: center;
    padding: 22px 24px;
  }

  .page-about .about-next-t {
    grid-column: 1;
  }

  .page-about .about-next-d {
    grid-column: 2;
  }

  .page-about .about-next-ar {
    grid-column: 3;
    grid-row: 1;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-inner {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: end;
  }

  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }

  .page-about .about-flow-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -22px;
    width: 16px;
    height: 2px;
    background: var(--cyan);
    transform: translateY(-50%);
  }
}

@media (min-width: 980px) {
  .page-about .about-tl {
    padding-left: 48px;
  }

  .page-about .about-tl::before {
    left: 12px;
  }

  .page-about .about-tl-item::before {
    left: -47px;
  }

  .page-about .about-partners-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 18px;
  }
}
<<<END>>>
```